Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, 10/18/10, edited) (A(H7N7))

[Giuseppe]

Low pathogenic avian influenza (poultry), Korea (Rep. of) (OIE, 10/18/10, edited)


[Source: OIE, full text (LINK). Edited.]

Low pathogenic avian influenza (poultry), Korea (Rep. of)

Information received on 17/10/2010 from Dr Kiyoon Chang, CVO & Director, Quarantine Policy Division, Food Safety & Consumer Affairs Policy Bureau, MIFAFF (Ministry of Food, Agriculture, Forestry and Fisheries) , Gyeonggi -Do, Korea (Rep. of)

• Summary
  • Report type Immediate notification (Final report)
  • Start date 05/10/2010
  • Date of first confirmation of the event 15/10/2010
  • Report date 17/10/2010
  • Date submitted to OIE 17/10/2010
  • Date event resolved 17/10/2010
  • Reason for notification Reoccurrence of a listed disease
  • Date of previous occurrence 24/06/2010
  • Manifestation of disease Sub-clinical infection
  • Causal agent Low pathogenic avian influenza virus
  • Serotype H7N7
  • Nature of diagnosis Laboratory (basic), Laboratory (advanced)
  • This event pertains to a defined zone within the country

• New outbreaks
  • Summary of outbreaks
    • Total outbreaks: 1
      • Location(s) - CH'UNGCH'ONG-NAMDO (Changso-ri, Yesan-eup, Yesan-gun)
        • Total animals affected: Species - Susceptible - Cases - Deaths - Destroyed - Slaughtered
          • Birds - 3274 - ** - 0 - 3274 - 0
      • Outbreak statistics: Species - Apparent morbidity rate - Apparent mortality rate - Apparent case fatality rate - Proportion susceptible animals lost*
        • Birds - ** - 0.00% - ** - 100.00%
        • * Removed from the susceptible population through death, destruction and/or slaughter
        • ** Not calculated because of missing information

• Epidemiology
  • Source of the outbreak(s) or origin of infection
    • Unknown or inconclusive

• Epidemiological comments
  • As part of the continuous avian influenza surveillance programme, Chungcheongnam-do Veterinary Research Institute tested the samples (faeces and laryngo-pharyngeal swabs) collected from ducks in the farm located in Changso-ri, Yesan-gun, Chungcheongnam-do on 5 October.
  • Haemagglutination test results were positive on 15 October.
  • The National Veterinary Research and Quarantine Service (NVRQS) found avian influenza antigen (H7N7) by PCR on 15 October and confirmed it as low pathogenic avian influenza virus (H7N7) by gene sequencing on 16 October.
  • Note by the OIE Animal Health Information Department: H5 and H7 avian influenza in its low pathogenic form in poultry is a notifiable disease as per Chapter 10.4. on avian influenza of the Terrestrial Animal Health Code (2010).

• Control measures
  • Measures applied
    • Stamping out
    • Quarantine
    • Movement control inside the country
    • Zoning
    • Disinfection of infected premises/establishment(s)
    • Vaccination prohibited
    • No treatment of affected animals
  • Measures to be applied
    • No other measures

• Diagnostic test results
  • Laboratory name and type National Veterinary Research and Quarantine Service (NVRQS) (National laboratory)
    • Tests and results: Species - Test - Test date - Result
      • Birds - gene sequencing - 16/10/2010 - Positive
      • Birds - polymerase chain reaction (PCR) - 15/10/2010 - Positive

• Future Reporting
  • The event is resolved. No more reports will be submitted.

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